Polyvinyl chloride-polypropylene flame-resistant composite material

A technology of flame-retardant composite materials and polyvinyl chloride, which is applied in the field of polypropylene flame-retardant composite materials and polyvinyl chloride, can solve problems such as poor toughness, large smoke generation, and unsatisfactory effects, and achieve improved tensile strength and bending The effect of the modulus of elasticity

Inactive Publication Date: 2013-08-14
福建晟扬管道科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The development of materials with flame-retardant and smoke-suppressing functions has become one of the important projects in the industry. Flame-retardant materials are composite materials that are difficult to burn, produce less smoke when burned, and produce less harmful gases. The materials currently used include nylon, polyethylene, etc., materials single, unsatisfactory
[0004] Polyvinyl chloride resin is a polar non-crystalline polymer with high hardness, but poor toughness and low impact strength
Although it is difficult to burn, if it encounters a fire, it will emit a lot of smoke and cause great pollution
[0005] Polypropylene has strong toughness and good impact resistance, but it is easy to burn

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0051] The preparation method of polyvinyl chloride of the present invention, polyethylene flame-retardant composite material comprises the following steps:

[0052] 1) Surface treatment of smoke suppressant: Put the smoke suppressant into a high-speed mixer at a stirring speed of 800-1000r / min, stir for 6-7 minutes, add coupling agent, and continue stirring for 2 minutes;

[0053] 2) Stirring: polyvinyl chloride resin, polypropylene resin, stabilizer, compatibilizer, compatibilizer, lubricant, toughening agent, and stirred smoke suppressant and coupling agent are mixed in a high-speed mixer at room temperature. Stir and mix at a stirring speed of 800-1000r / min for 5 minutes to make it evenly mixed;

[0054] 3) Pelletizing: Send the stirred raw materials into a twin-screw extruder, and knead the raw materials into a molten state at a temperature of 170-210°C with the length-to-diameter ratio of the host screw being 38:1; It is an auxiliary machine of 8:1, extruded and granula...

Embodiment 1

[0057] First weigh the raw materials according to the following formula:

[0058] 23 parts of polyvinyl chloride resin;

[0059] 58 parts of polypropylene resin;

[0060] 1 part of calcium zinc stabilizer;

[0061] 2 parts of butyl methacrylate grafted polypropylene;

[0062] 0.25 parts of chlorinated polyethylene, 0.25 parts of methyl methacrylate, 0.25 parts of ethyl methacrylate, and 0.25 parts of butyl methacrylate are mixed;

[0063] 0.08 part of titanate coupling agent;

[0064] 3 parts of magnesium hydroxide;

[0065] 0.15 parts of polyethylene wax;

[0066] 0.15 part of monoglyceride;

[0067] 2 parts of EPDM rubber.

[0068] The preparation process of polyvinyl chloride and polyethylene flame retardant composite material of the present invention is:

[0069] 1) Magnesium hydroxide surface treatment: put magnesium hydroxide into a high-speed mixer at a stirring speed of 800r / min, stir for 6 minutes, add titanate coupling agent, and continue stirring for 2 minut...

Embodiment 2

[0074] First weigh the raw materials according to the following formula:

[0075] 26 parts of polyvinyl chloride resin;

[0076] 63 parts of polypropylene resin;

[0077] 3 parts of calcium zinc stabilizer;

[0078] 4 parts of butyl methacrylate grafted polypropylene;

[0079] 0.75 parts of chlorinated polyethylene, 0.75 parts of methyl methacrylate, 0.75 parts of ethyl methacrylate, and 0.75 parts of butyl methacrylate are mixed;

[0080] 0.12 parts of titanate coupling agent;

[0081] 5 parts of magnesium hydroxide;

[0082] 0.5 parts of polyethylene wax;

[0083] 0.5 part of monoglyceride;

[0084] EPDM rubber 4 parts.

[0085] The preparation process of polyvinyl chloride and polyethylene flame retardant composite material of the present invention is:

[0086] 1) Magnesium hydroxide surface treatment: put magnesium hydroxide into a high-speed mixer at a stirring speed of 1000r / min, stir for 7 minutes, add titanate coupling agent, and continue stirring for 2 minutes...

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PUM

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Abstract

The invention discloses a polyvinyl chloride-polypropylene flame-resistant composite material, which comprises the following raw materials: polyvinyl chloride resin, polypropylene resin, a stabilizer, a compatilizer, a compatibilizer, a coupling agent, a smoke suppressant, a lubricant and a toughening agent. According to the invention, butyl methacrylate grafted polypropylene polyvinyl chloride resin and polypropylene resin are organically combined together through the addition of the compatilizer, the advantages of the polyvinyl chloride resin and the polypropylene resin are well used to reach the purpose of flame resistance, and the tensile strength and modulus of elasticity in static bending of the flame-resistant composite material are also improved.

Description

technical field [0001] The invention relates to the field of flame-retardant composite materials, in particular to polyvinyl chloride and polypropylene flame-retardant composite materials. Background technique [0002] With the continuous development of the city, there are many hotels and hotels, dense buildings, and frequent fires, which have caused huge casualties and property losses. Especially in recent years, the losses caused by fires in various countries have been on the rise, which is not conducive to the stability of social development. To reduce the occurrence of fire, it is very important that the materials used in the construction and decoration process have high temperature resistance and flame retardant functions. [0003] The development of materials with flame-retardant and smoke-suppressing functions has become one of the important projects in the industry. Flame-retardant materials are composite materials that are difficult to burn, produce less smoke when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L27/06C08L51/06B29B9/06
Inventor 何承枫何龙新郑昆景
Owner 福建晟扬管道科技有限公司
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